Self-feeding extruder



Aug. 24, 1943. L. LONDON 2,327,725

SELF-FEEDING EXTRUDER Filed June 16, 1942 2 Sheets-Sheet l Inventor .Zlozv LONDON WM ru s 1943. L. LONDON 2,327,725

SELF-FEEDING EXTRUDER Filed June 16, 1942 2 Shets-Sheet 2 Inventor Law Lo/vw N I I y @Mm Patented Aug. 24, 1943 UNITED STATES PATENT OFFICE SELF-FEEDING EXTRUDER Lon London, Burley, Idaho Application June 16, 1942, Serial No. 447,297

1 Claim.

This invention relates to new and useful improvements in extruders, the principal object of the invention being to provide an extruder which will afford uniform pressure on the material at all times and will eliminate the necessity for the use of a scroll or similar appliance.

()ther objects and advantages of the invention will become apparent to the reader of the following description.

In the drawings:

Figure 1 represent a top plan view.

Figure 2 is a side elevational view.

Figure 3 is a vertical sectional 33 of Figure 1.

Figure 4 is a fragmentary detailed sectional View taken substantially on the line 44 of Figure 3.

Figure 5 is a fragmentary perspective view the swingable wall.

Referring to the drawings wherein like numerals designate like parts, it can be seen that numeral denotes a bin-like structure having a back wall, side walls, and a bottom wall. The

bottom wall is in the form of a sieve 6 which extends from a point at the lower edge of the swingable back wall I, to the point 8 at the lower edge of the front wall 9 and well above a roll H] which is located within the lower portion of the bin. This roll comprises a cylinder ll, flanged at its end portions as at l2 and having rods l3 extending along the cylinder I I between said flanges l2. The roll is mounted on a shaft I l which extends through the side walls of the bin, and of course, is operated by suitable power. As is clearly shown in Figure 3, the roll is situated just above the lowermost portion of the sieve 6 and toward the lower portion of the adjustable back wall I. This back wall 1 is mounted on hinges view on the line or pivot points l5 and has link bars 16 extending therefrom to short slots I! in the side walls of the bin. in these slots l1 posts l8 are slidablei invention in specific terms, it is to be understood that numerouschanges in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the claimed as new is:

An extruder of the class described comprising a bin-like structure provided with a porous bottom wall, an extruding roll mounted withinthe lower portion of the bin-like structure and toward one side wall thereof, said one side wall being provided with an adjustable panel hingedly secured at its upper portion to the bin-like structure, said panel being provided with ears at its end portions, a link member for each ear, each of said link members being pivotally secured to the corresponding ear, and being apertured at its opposite end, said bin-like structure including end walls formed with substantially horizontal slots, and detent elements disposed through the openings in the link members and through the slots and being adapted to be clamped against the said end walls to hold the link members and the panel in definitely adjusted relation with respect to the roll.

invention, what is LON LONDON. 

